As the Giants gathered Wednesday to watch in painstaking detail every play they had run on offense Sunday night — there were just 56 of them, thankfully — they were forced to review the wreckage of their 19-3 season-opening loss to the Cowboys, frame by frame, mistake by mistake.

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Landon Collins quickly assessed the damage, what his defense allowed...

“We are excited to move on, flush it,’’ guard Justin Pugh said.

As fervently as the Giants want to flush this stinker, it is impossible to dismiss this as an opening-season clunker. The Giants, dating back to last season, have failed to score 20 or more points in seven consecutive games — counting the playoff loss in Green Bay.

No other team in the NFL has an active streak longer than two games without reaching 20 points. The new season arrived with the same problems.

Before moving on to Monday night’s home-opener against the Lions, the Giants had to take the beating that comes with digesting scoring just three points to a division rival, a dreadful showing without Odell Beckham Jr. — who sat out with a sprained left ankle. Flowers, always in the center of the storm as a high draft pick (ninth overall in 2015) not performing up to expectations, sensed a greater motivation when reviewing the debacle still fresh in the minds of the Giants.

“I think there’s more urgency to go out there, and [the desire to] do what we want to do,’’ Flowers said.

Eli Manning has seen this before, which is why he could lighten the mood when asked if he at least is relieved that the offensive woes cannot get any worse.

“It can always get worse,’’ he said, smiling. “So, I won’t say that, but hopefully it can get a lot better though.’’

Several players noted the Cowboys’ defense, at times, surprised the Giants, which sounds troubling.

“We had some unscouted looks we hadn’t practiced,” tight end Rhett Ellison said.

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Pugh said: “Dallas did some things that I would say caught us off guard up front. There were a few wrinkles that they threw in there, which obviously is going to happen in Week 1.’’

Manning, under siege most of the night, knows the postmortem analysis can be uncomfortable, but must be tolerated.

“You can’t get too sensitive after the first game,’’ Manning said. “You can’t get defensive, can’t get sensitive. You just have to be confident in what you’re doing, understand what you need to fix and then go play fast.’’

It was impossible for the Giants to play fast in their opener, as the offensive line could not control the line of scrimmage. For a group already heavily scrutinized, it was the worst possible 2017 debut.

“I mean, it is in our face,’’ Pugh said. “Every time I turn around, somebody is asking us what is wrong with the O-line.’’

Right tackle Bobby Hart, who sprained his right ankle early in the game, said he knew the offensive line would bear the brunt of the abuse.